Pith Number

pith:XZQO4OWF

pith:2011:XZQO4OWFV7TF2AH7DJHTVNOOHM

not attested not anchored not stored refs pending

Recent advances in the study of the Equivariant Brauer Group

Alan Carey, Peter Bouwknegt, Rishni Ratnam

arxiv:1109.0591 v1 · 2011-09-03 · math.OA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZQO4OWFV7TF2AH7DJHTVNOOHM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:14:07.271596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be60ee3ac5afe65d00ff1a4f3ab5ce3b3e3370800999339eab7920c5f637b8b6

Aliases

arxiv: 1109.0591 · arxiv_version: 1109.0591v1 · doi: 10.48550/arxiv.1109.0591 · pith_short_12: XZQO4OWFV7TF · pith_short_16: XZQO4OWFV7TF2AH7 · pith_short_8: XZQO4OWF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XZQO4OWFV7TF2AH7DJHTVNOOHM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: be60ee3ac5afe65d00ff1a4f3ab5ce3b3e3370800999339eab7920c5f637b8b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1a6470b79d764d69b3c4fd7b162b5fa2a52481a7d0419b589fea056df864773",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2011-09-03T04:33:48Z",
    "title_canon_sha256": "25cf30a698dfa9b0e501b5e8ccfb8c755063631858cc5c3123feab019f092039"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0591",
    "kind": "arxiv",
    "version": 1
  }
}